<template>
  <div class="Hellow">
    <h1>这是组件传值：{{ app_hello.msg }}</h1>
    <div>HELPW</div>
  </div>
</template>

<script lang='ts'>
import { defineComponent } from "vue";

export default defineComponent({
  props: ["app_hello"],
  setup() {},
});
</script>


<style scoped lang = 'less'>
.Hellow {
  h1 {
    color: #ddd;
  }
  div {
    color: red;
  }
}
</style>
